Nielsen Hayden genealogy
Descendants of Ilger
Father: Roer
Ilger
   └─ Roger de Kilton
   
       └─ Maud de Kilton (of Kilton Castle, Cleveland, Yorkshire, England - ??)
        Robert de Thweng (of Thwing, Bridlington, Yorkshire, England - Between 1245 and 1257)(m. Bef Jan 1229)
           └─ Marmaduke de Thweng (of Kilton in Brotton, Yorkshire, England - Between 1282 and 1284) =>
            + Lucy de Brus ( - Aft 29 Mar 1282)(m. Abt 1242)